173321 ⎘
Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
Sub-classes:ELECTROMAGNETIC MARKER DEVICES FOR BURIED OR HIDDEN USE
#2MAGNETIC FIELD IMAGE ACQUISITION APPARATUS AND METHOD BASED ON RESONANT STRUCTURE
#3Metal Detector Coil
#4Methods and Systems for Managing the Reconfiguration of Metal Detectors
#5STIMULATED-ECHO IMAGING FOR EPRI
#6INDUCTIVE SCANNER AND METHOD FOR INDUCTIVE SCANNING
#7Metal Detection System For Use With Medical Waste Container
#8METHOD AND APPARATUS FOR AUTONOMOUS GRAVITY AND/OR MAGNETIC FIELD MEASUREMENT
#9CONSTANT CURRENT METAL DETECTOR WITH DRIVEN TRANSMIT COIL
#10NON-CONTACTING ANGULAR ENCODER FOR DETERMINATION OF RELATIVE ORIENTATION OF TWO REFERENCE FRAMES ATTACHED COMPLIANTLY
#11APPARENT RESISTIVITY MEASURING SYSTEM AND METHOD USING SEMI-AIRBORNE ELECTROMAGNETIC METHOD
#12DEVICE AND PROCESSING METHOD FOR OFFSETTING ATTITUDE ERROR OF SEMI-AIRBORNE ELECTROMAGNETIC SYSTEM
#13SYSTEM AND METHOD OF IMPROVING SENSOR RESPONSE FOR A MAGNETIC GATEWAY USING A MAGNETIC BUCKING APPARATUS
#14METAL DETECTION APPARATUS
#15Non-Invasive Method For Behind-Casing Cable Localization
#16Method for Securing Power in Remote Locations and Apparatus Therefor
#17CONSTANT CURRENT METAL DETECTOR WITH DRIVEN TRANSMIT COIL
#18SYSTEMS AND METHODS FOR LOCATING, MAPPING, AND IDENTIFYING SUBTERRANEAN PIPELINES
#19T-sensitive inversion-recovery imaging for EPROI
#20Audio rendering of an electromagnetic metal detection signal
#21Charging system, foreign object detection method and component, charging control method and device
#22Foreign object detection circuit using mutual impedance sensing
#23Foreign object detection circuit
#24Metal detection system for use with medical waste container
#25CONSTANT CURRENT METAL DETECTOR WITH DRIVEN TRANSMIT COIL
#26Open metal detector
#27Metal detector, handheld power tool comprising this metal detector, metal detection method, and metal detection program
#28Reference signal compensation for magnetostrictive sensor
#29Luggage detector
#30Metal-detector means for locating the presence of metal objects
#31Metal detection system for use with medical waste container
#32Antenna of a metal detector
#33Detector for detecting electrically conductive material
#34Foreign object detection circuit using mutual impedance sensing
#35Metal Detector
#36CONSTANT CURRENT METAL DETECTOR WITH DRIVEN TRANSMIT COIL
#37Metal detector
#38Inductive analysis of metal objects
#39Programmable universal probe
#40Foldable metal detector
#41Foldable portable metal detector having a quickly replaceable detection coil disk
#42Detection coil, detection apparatus, and detection system
#43INDUCTIVE POSITION SENSOR WITH SWITCH FUNCTION
#44INDUCTIVE POSITION SENSOR WITH SWITCH FUNCTION
#45Device for detecting, by induction, intention of locking or unlocking an opening element of a motor vehicle with primary and secondary coils
#46METHOD FOR SECURING POWER IN REMOTE LOCATIONS AND APPARATUS THEREFOR
#47Reference signal compensation for magnetostrictive sensor
#48Sensor arrangement for a foreign object detection device
#49Detector with triangle-shaped inductor coils
#50Foreign object detection in wireless power transfer by asymmetry detection
#51Non-Invasive Method For Behind-Casing Cable Localization
#52CONSTANT CURRENT METAL DETECTOR WITH DRIVEN TRANSMIT COIL
#53High-isolation transmit/receive surface coils for EPRI
#54Method for locating an object moving in a magnetic field generated by a set of at least three magnetic generators
#55Wireless power transmission apparatus
#56Foreign object detection circuit using mutual impedance sensing
#57Electromagnetic marker devices for buried or hidden use
#58Differential target antenna coupling (DTAC) data corrections
#59Metal detection apparatus
#60Differential target antenna coupling (DTAC) data corrections
#61Method and apparatus for monitoring the flow of mixtures of fluids in a pipe
#62Method and apparatus for monitoring the flow of mixtures of fluids in a pipe
#63Method and apparatus for evaluating damage to magnetic linear body
#64Method and apparatus for evaluating damage to magnetic linear body
#65Calibration method for electromagnetic induction measurement systems, and apparatus
#66Foreign object detection circuit using current measurement
#67Hemisphere ambiguity correction in electromagnetic position tracking systems
#68Magnetic sensor sensitivity matching calibration
#69Correcting field distortion in electromagnetic position tracking systems
#70Method and apparatus of near-bit resistivity for looking-ahead
#71Metal detection apparatus and metal detection method
#72Interconnect ring for microminiature electrical coil
#73Metal detection sensor and metal detection method using same
#74Metal detection system for use with medical waste container
#75Foreign object detection in wireless energy transfer systems
#76Shieldings for metal detector heads and manufacturing methods thereof
#77Foreign object detection in wireless power transfer by asymmetry detection
#78Device for detecting a parasitic metallic object in the emission zone of a device for recharging a user apparatus for an automotive vehicle and associated detection method
#79Metal detection devices
#80LOCATING-DEVICE PROBE ASSEMBLY
#81DEVICE FOR LOCATING OBJECT, AND METHOD FOR LOCATING OBJECT BY MEANS OF DEVICE
#82Signal processing technique for a metal detector
#83Method and apparatus for simultaneous inductive excitation and locating of utilities
#84Underground utility line detection
#85Pulsed eddy current casing inspection tool
#86DETECTING PASSING OF UNINTENDED OBJECTS THROUGH THROAT OF UNDER-SINK DISPOSAL
#87WEARABLE METAL DETECTOR
#88Method for testing a metal detection apparatus and metal detection apparatus
#89Constant Current Metal Detector with Driven Transmit Coil
#90Conductor tracing instruments
#91Differential target antenna coupling (“DTAC”) data corrections
#92Dynamic mutual sensing foreign object detection loops
#93Systems and methods for uniquely identifying buried utilities in a multi-utility environment
#94Foreign-object detecting device, wireless electric-power transmitting device, and wireless electric-power transmission system
#95Detector systems
#96Foreign matter detection device
#97Utility locators with retractable support structures and applications thereof
#98Detecting passing of unintended objects through throat of under-sink disposal
#99OMNI-INDUCER TRANSMITTING DEVICES AND METHODS
#100Gradient antenna coils and arrays for use in locating systems
#101Apparatus, system and method for remote localisation of a marker using magnetic fields
#102Walk Through Metal Detection System
#103Multi-frequency micro induction and electrode arrays combination for use with a downhole tool
#104Utility locating systems, devices, and methods using radio broadcast signals
#105Methods and apparatus for collocating electromagnetic coils and electronic circuits
#106Sondes and methods for use with buried line locator systems
#107Detecting passing of unintended objects through throat of under-sink disposal
#108System and method for locating a marker using a locator with multiple transmitters
#109Wear member retention system for an implement
#110Checking a presence of an electrically conductive body
#111Method and apparatus for EPROI using T1e spin-lattice relaxation response
#112Sensor and method for foreign object detection in induction electric charger
#113APPARATUS AND METHOD FOR CONCENTRATING MAGNETIC FIELD AT HIGH RESOLUTION AND MAGNETIC FIELD RECEIVING DEVICE FOR SAME
#114System for the detection and classification of buried unexploded ordnance
#115Apparatus and method for simultaneously obtaining quantitative measurements of formation resistivity and permittivity in both water and oil based mud
#116Antenna for underground line location
#117Gain compensated tensor propagation measurements using collocated antennas
#118Buried object locators with dodecahedral antenna nodes
#119Device and method for monitoring access to a storage area of a plurality of storage areas for goods
#120Buried service detection
#121Buried service detection
#122Homogeneous inversion for multi-component induction tools
#123Method and apparatus for monitoring the flow of mixtures of fluid in a pipe
#124Extended 1D inversion of electromagnetic measurements for formation evaluation
#125Object locater and method for locating a metallic and/or magnetizable object
#126Method of detecting cookware on an induction hob, induction hob and cooking appliance
#127Metal detector apparatus, system, and method
#128Power transmission device and power reception device
#129Utility locator apparatus, systems, and methods
#130Metal object detection device
#131Sensor having rotationally offset coil pairs and differently formed receiving coils for locating metal or magnetic objects
#132Multi-axial antenna and method for use in downhole tools
#133Foreign object detection in wireless energy transfer systems
#134Foreign-object detecting device, wireless electric-power transmitting device, and wireless electric-power transmission system
#135MAGNETIC SENSOR DEVICE
#136Apparatus and methods to find a position in an underground formation
#137Stationary star-shaped antenna method for manipulating focused beamformed, shaped fields and beamsteered electromagnetic signal from subtel sedimentary stratigraphic formations deep in the earth
#138Inductive clamp devices, systems, and methods
#139Method for determining the position of a mobile unit and installation for executing a method
#140Calibration method for multi-component induction tools
#141Induction logging sensor
#142Light Attachment for Metal Detectors
#143Dual coil for electromagnetic sounding of layered earth
#144OBJECT FINDER
#145TRANSIENT ELECTROMAGNETIC GEOPHYSICS SYSTEM WITH COOPERATIVE SOURCE(S)
#146Apparatus and a method for metal detection involving a mobile terminal with a display
#147Metal sensor
#148Method of locating the position of linear objects
#149Method and high-isolation transmit/receive surface coils for EPRI
#150Omni-inducer transmitting devices and methods
#151Metal object or feature detection apparatus and method
#152X-ray based system and methods for inspecting a person's shoes for aviation security threats
#153Detector systems
#154Gradient antenna coils and arrays for use in locating systems
#155Device for detecting objects such as mines
#156Shieldings for metal detector heads and manufacturing methods thereof
#157Method and apparatus for target-guided localizing of a cable fault
#158Multi-axial antenna and method for use in downhole tools
#159Phase synchronized buried object locator apparatus, systems, and methods
#160Detection of a metal or magnetic object
#161Metal detector for use with conductive media
#162Method and apparatus for a metal detection system
#163Method for separating target signals from unwanted signals in a metal detector
#164Detection of a metal or magnetic object
#165Buried object locator apparatus with safety lighting array
#166Stationary star-shaped antenna method for manipulating focused beamformed, shaped fields and beamsteered electromagnetic signal from subtel sedimentary stratigraphic formations deep in the earth
#167Method for operating a metal detection apparatus and apparatus
#168Metal detection apparatus
#169Walk through metal detection system
#170METAL DETECTOR TARGET DISCRIMINATION IN MINERALIZED SOILS
#171Metal detector
#172METHOD AND APPARATUS FOR MEASURING AN OBJECT OF INTEREST
#173Metal detector with at least one transmit/receive switch
#174Detection method and detector of a disruption, positioning method and system using said method
#175Metal detector
#176Detection apparatus with a matching network for nulling and associated methods
#177Real-time rectangular-wave transmitting metal detector platform with user selectable transmission and reception properties
#178Hybrid induction balance/pulse induction metal detector
#179Determining Earth Properties
#180Systems and methods of reducing a component of a signal caused by vibration
#181METHOD AND SYSTEM FOR MAGNETIC INDUCTION TOMOGRAPHY
#182METHOD AND DEVICE FOR MAGNETIC INDUCTION TOMOGRAPHY
#183X-ray-based system and methods for inspecting a person's shoes for aviation security threats
#184Digitally Operating Device for Detecting Metallically Conductive Parts
#185Device for detecting metallic-conducting parts in a conveyed flow
#186Differential target antenna coupling (DTAC)
#187Magnetic-disturber detection method and detector, object-localizing method and system, recording medium for these methods
#188Continuous wave metal detector
#189Method and device for calibrating a magnetic induction tomography system
#190METAL DETECTOR
#191Systems and methods of reducing a component of a signal caused by vibration
#192Moving vehicle system and method of detecting position of moving vehicle
#193Detector systems
#194Rectangular-wave transmitting metal detector
#195CONSTANT CURRENT METAL DETECTOR WITH DRIVEN TRANSMIT COIL
#196METHOD AND APPARATUS FOR MAGNETIC INDUCTION TOMOGRAPHY
#197Metal detector with improved magnetic soil response cancellation
#198Multi-frequency transmitter for a metal detector
#199Real-time rectangular-wave transmitting metal detector platform with user selectable transmission and reception properties
#200Multi-axial antenna and method for use in downhole tools
#201Metal detector
#202Device for identifying metallic foreign components
#203Multi-sensor system for the detection and characterization of unexploded ordnance
#204Metal detection device
#205Searching apparatus and method for operating a searching apparatus
#206Enhanced precise location
#207Metal detector
#208Portable wireless metal detector
#209Passenger inspection system and methods for using the same
#210Systems and methods useful for detecting presence and / or location of various materials
#211Sensor for locating metallic objects and method for evaluating measurement signal of such a sensor
#212Underwater electric field electromagnetic prospecting system
#213Device and method of detecting ferrite and non-ferrite objects
#214Magnetic induction tomography system and method
#215Metal detector with reliable identification of ferrous and non-ferrous metals in soils with varying mineral content
#216Metal detector
#217Multi-frequency metal detector having constant reactive transmit voltage applied to a transmit coil
#218Magnetic detecting device and material identifying device
#219Rectangular-wave transmitting metal detector
#220Method for the detection of objects enclosed in a medium, and measuring apparatus for carrying out said method
#221Method and apparatus for metal detection employing digital signal processing
#222Metal detector gate comprising refined indicator means
#223Reduced field distortion in medical tools
#224System and method for selective transfer of radio frequency power
#225Symmetric multiple sensing apparatus
#226Metal detector presenting high performance
#227Antenna for detecting magnetic field, and gate for detecting detection tag employing the antenna
#228Magnetic material detecting apparatus
#229System and method for locating underground utilities carrying passive signals
#230Passively shielded inductive sensor system for personnel screening
#231Systems and methods useful for detecting presence and / or location of various materials
#232Metal detection device
#233Magnetic material detecting device
#234Magnetic resonance screening portal with combination sensing
#235Variable damping induction coil for metal detection
#236Moving belt sensor
#237Electrical conductor locating device
#238Multi-mode electromagnetic target discriminator sensor system and method of operation thereof
#239Metallic contaminant detecting method and apparatus therefor
#240Detector system for detecting the direction in which an item passes through a determined boundary zone
#241Step current inductive antenna for pulse inductive metal detector
#242Conveyor with a metal detecting device
#243System and method for hemisphere disambiguation in electromagnetic tracking systems
#244Systems and methods for utility locating in a multi-utility environment
#245Buried object locator apparatus including twelve nodes
#246Electromagnetic marker devices for buried or hidden use
#247Systems and methods for utility locating in a multi-utility environment
#248Electromagnetic marker devices for buried or hidden use
#249Utility locator apparatus and methods
#250Buried object locator with dodecahedral antenna configuration apparatus and methods
#251Phase-synchronized buried object transmitter and locator methods and apparatus
#252Systems and methods for utility locating in a multi-utility environment
#253Utility locators with retractable support structures and applications thereof
#254Buried object locator apparatus and methods
#255Phase-synchronized buried object transmitter and locator methods and apparatus
#256Inductive clamp devices, systems, and methods
#257System and method for induction-based metal detection and high resolution sorting
#258Wearable magnetic field utility locator system with sound field generation
#259Truncated half-sine methods for metal detectors